Ngaba iipali zasesitalatweni zelanga kufuneka zibe zibanda okanye zibe shushu?

Kule mihla, iikhoyili zentsimbi ze-premium Q235 zezona zinto zidumileyo kuzoiipali zesitalato zelanga. Ngenxa yokuba izibane ezikhanyisa ngelanga ezitalatweni zibethwa ngumoya, lilanga nemvula, ukuphila kwazo ixesha elide kuxhomekeke kumandla azo okumelana nomhlwa. Intsimbi idla ngokuba yigalvanized ukuphucula oku.

Kukho iintlobo ezimbini ze-zinc plating: i-hot-dip kunye ne-cold-dip galvanizing. Ngokubaiipali zentsimbi ezishushu-diphuzixhathisa ngakumbi kumhlwa, sihlala sicebisa ukuba sizithenge. Yintoni umahluko phakathi kwe-hot-dip kunye ne-cold-dip galvanizing, kwaye kutheni iipali zegalvanized dip dip zinokumelana nokugqwesa okuphezulu? Makhe sijonge kunye noTianxiang, umzi-mveliso wepali odumileyo waseTshayina.

I-1) I-Cold Galvanizing (Ekwabizwa ngokuba yi-electro-galvanizing): Emva kokuchithwa kunye nokucolwa, intsimbi ifakwe kwisisombululo setyuwa ye-zinc. Isisombululo sixhunyiwe kwi-electrode engalunganga yezixhobo ze-electrolysis, kwaye i-zinc plate ibekwe ngokuchaseneyo, ixhunywe kwi-electrode efanelekileyo. Xa umbane uvuliwe, njengoko i-current ihamba ngokuthe ngqo ukusuka kwi-positive ukuya kwi-electrode engafanelekanga, i-uniform, i-dense, kunye ne-bonding zinc deposit layer form form on the surface of the steel pipe.

2) I-Hot-dip galvanizing: Umphezulu wentsimbi ufakwe kwi-zinc etyhidiweyo emva kokucoca kunye nokusebenza. Umaleko we-metallic zinc uphuhla kumphezulu wentsimbi ngenxa yokusabela kwe-physicochemical phakathi kwe-iron kunye ne-zinc kwi-interface. Xa kuthelekiswa ne-galvanizing ebandayo, le ndlela ivelisa ibhondi eyomeleleyo phakathi kwe-coating kunye ne-substrate, ukuphucula ukuxinana kwe-coating, ukuqina, ukusebenza okungekho kugcinwa, kunye nokusebenza kakuhle kweendleko.

1) Indlela yokucubungula: Amagama abo awenza ucace umahluko. I-Zinc efunyenwe kwiqondo lokushisa kwegumbi isetyenziselwa i-cold-dip galvanized steel pipes, kanti i-zinc efunyenwe kwi-450 ° C ukuya kwi-480 ° C isetyenziselwa i-galvanizing eshushu.

2) Ukutyeba kokugquma: Nangona i-galvanizing ebandayo idla ngokuvelisa ubukhulu be-3-5 μm kuphela, eyenza ukucubungula kube lula kakhulu, kunokumelana nokugqwala. Ngokwahlukileyo koko, ukugalela okushushu kwediphu kunika ubukhulu be-10μm okanye ngaphezulu, obuxhathisa amashumi amatyeli aphindwe kalishumi kumhlwa kuneepali zokukhanya ezibandayo.

3) Isakhiwo sokugquma: I-coating kunye ne-substrate yahlulwe ngumaleko wekhompawundi othelekisekayo kwi-galvanizing yediphu eshushu. Nangona kunjalo, ngenxa yokuba i-coating yenziwe ngokupheleleyo nge-zinc, ebangela ukuba i-uniform ifake kunye ne-pores ezimbalwa, okwenza kube lula ukubola, oku kunempembelelo encinci ekuchaseni ukubola. Ngokwahlukileyo, i-galvanizing ye-cold-dip isebenzisa i-coating eyenziwe nge-athomu ye-zinc kunye nenkqubo yokubambelela emzimbeni kunye neepores ezininzi, ezenza ukuba zichaphazeleke kwi-corrosion yendalo.

I-4) Ukwahlukana kwexabiso: Ukuveliswa kwe-galvanizing eshushu-dip kunzima kwaye kunzima. Ke ngoko, iinkampani ezincinci ezinezixhobo ezindala zisebenzisa igalvanizing ebandayo, ekhokelela kwiindleko eziphantsi kakhulu. Abavelisi abakhulu, abasele bemiliselwe kwidip-dip galvanizing ngokubanzi banolawulo olungcono lomgangatho, nto leyo ekhokelela kwiindleko eziphezulu.

Abanye abantu banokuthi nokuba bayawazi umahluko phakathi kwe-galvanizing ye-cold-dip kunye ne-hot-dip galvanizing, abakawazi umahluko. Ezi ziindlela zokulungisa ezingabonakaliyo ngeso lenyama. Kuthekani ukuba umrhwebi onganyanisekanga usebenzisa igalvanizing yediphu ebandayo endaweni yokufaka igalvanizing yediphu eshushu? Eneneni, akukho mfuneko yakukhathazeka. Cold-dip galvanizing kunyeeshushu-dip galvanizingzilula kakhulu ukwahlula.

Umphezulu obandayo owenziwe ngamazinki ugudileyo, ubukhulu becala butyheli-luhlaza, kodwa eminye isenokuba nebala elikhazimlayo, eliluhlaza okwesibhakabhaka, okanye elimhlophe kunye nesheen eluhlaza. Zisenokubonakala zibuthuntu okanye zimdaka. Umphezulu owenziwe ngamazinki ashushu, xa uthelekisa, urhabaxa, kwaye unokuba nentyatyambo ye zinc, kodwa zikhangeleka ziqaqambile kwaye zimhlophe qhwa. Nikelani ingqalelo kwezi yantlukwano.